thekarmaway/qml/TheKarmaWay/js/core.js

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//license as follows:

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// ---------------------------------------------------------------------------

.pragma library

var _db;

function openDB() {
    _db = openDatabaseSync("KarmaDB","1.0","The Karma Way Database",1000000);
    createTableKarma();
    createTableUser();
    if (countUsers()==0){
        createDefaultUser();
        return 0
    }else
        return 1
}

function createTableKarma(){
    _db.transaction(
                function(tx){
                    tx.executeSql("CREATE TABLE IF NOT EXISTS karma (id INTEGER PRIMARY KEY AUTOINCREMENT, points INTEGER, title TEXT, description TEXT, modified TEXT)");
                }
                )
}


function dropKamraTable()
{
    _db.transaction(
                function(tx){
                    tx.executeSql("DROP TABLE IF EXISTS karma");
                }
                )
}

function readKarmas()
{
    var data = [];
    _db.readTransaction(
                function(tx){
                    var rs = tx.executeSql("SELECT * FROM karma ORDER BY modified DESC");
                    for (var i=0; i< rs.rows.length; i++) {
                        data[i] = rs.rows.item(i);
                    }

                }
                )
    return data;
}

function updateKarma(karmaItem)
{
    _db.transaction(
                function(tx){
                    tx.executeSql("UPDATE karma SET points = ? ,  \
                                  title = ?, description = ?,  modified = ?  \
                                  WHERE id = ?", [karmaItem.points,  karmaItem.title,  karmaItem.description,
                                                  karmaItem.modified, karmaItem.id]);
                }
                )
}


function deleteKarma(id)
{
    _db.transaction(
                function(tx){
                    tx.executeSql("DELETE FROM karma WHERE id = ?", id);
                }
                )
}

function createKarma(karmaItem)
{   
    print ('creating karma record:' + karmaItem.title + ' ' +karmaItem.points + ' '+ karmaItem.description)
    _db.transaction(
                function(tx){
                    tx.executeSql("INSERT INTO karma (points,title,description, modified) VALUES(?,?,?,?)",[ karmaItem.points, karmaItem.title, karmaItem.description, karmaItem.modified]);
                }
                )
}


function readKarmaList(model)
{
    model.clear()
    //print ('reading karma list')
    _db.readTransaction(
                function(tx){
                    var rs = tx.executeSql("SELECT * FROM karma ORDER BY modified DESC");
                    for (var i=0; i< rs.rows.length; i++) {
                        model.append(rs.rows.item(i))
                    }
                }
                )
}

function readPeopleList(model)
{
    model.clear()
    print ('reading people list')
    _db.readTransaction(
                function(tx){
                    var rs = tx.executeSql("SELECT * FROM user ORDER BY name ASC");
                    for (var i=0; i< rs.rows.length; i++) {
                        model.append(rs.rows.item(i))
                    }
                }
                )
}

function getGoodKarma()
{
    var data=0
    _db.readTransaction(
                function(tx){
                    var rs = tx.executeSql("SELECT SUM(points) AS good FROM karma WHERE points>0");
                    if(rs.rows.length === 1 && rs.rows.item(0).good>0) {
                        data = rs.rows.item(0).good
                        print("Good: "+data)
                    }
                }
                )
    return data;
}

function getBadKarma()
{
    var data=0
    _db.readTransaction(
                function(tx){
                    var rs = tx.executeSql("SELECT SUM(points) AS bad FROM karma WHERE points<0");
                    if(rs.rows.length === 1 && rs.rows.item(0).bad>0) {
                        data = rs.rows.item(0).bad
                        print("Bad: "+data)
                    }
                }
                )
    return data;
}

function readKarmaItem(karmaId) {
    var data
    _db.readTransaction(
                function(tx){
                    var rs = tx.executeSql("SELECT * FROM karma WHERE id=?", [karmaId])
                    if(rs.rows.length === 1) {
                        data = rs.rows.item(0)
                    }
                }
                )
    return data;
}


function createTableUser(){
    _db.transaction(
                function(tx){
                    tx.executeSql("CREATE TABLE IF NOT EXISTS user (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, image TEXT, description TEXT)");
                }
                )
}


function createDefaultUser()
{
    //print ('creating karma record:' + karmaItem.title + ' ' +karmaItem.points)
    _db.transaction(
                function(tx){
                    tx.executeSql("INSERT INTO user (name, image, description) VALUES(\"Your name\",\"qrc:/violet/face\",\"I'm a karmic person\")");
                }
                )
}

function updateUser(UserItem)
{
    _db.transaction(
                function(tx){
                    tx.executeSql("UPDATE user SET name = ? ,  image = ? , description=? \
                                  WHERE id = ?", [UserItem.name,  UserItem.image, UserItem.description, UserItem.id]);
                }
                )
}

function createPlayer(UserItem)
{
    _db.transaction(
                function(tx){
                    tx.executeSql("INSERT INTO user (name, image, description) VALUES(?,?,?)", [UserItem.name,  UserItem.image, UserItem.description]);
                }
                )
}

function readUserItem(userId) {
    var data
    _db.readTransaction(
                function(tx){
                    var rs = tx.executeSql("SELECT * FROM user WHERE id=?", [userId])
                    if(rs.rows.length === 1) {
                        data = rs.rows.item(0)
                    }
                }
                )
    return data;
}

function countUsers() {
    var data=0
    _db.readTransaction(
                function(tx){
                    var rs = tx.executeSql("SELECT COUNT(*) AS number FROM user")
                    if(rs.rows.length === 1) {
                        data = rs.rows.item(0).number
                    }
                }
                )
    return data;
}

function printObject(o)
{
    print('---')
    print(Object.keys(o))
    for(var key in o) {
        print("  " + key +"="+o[key])
    }

}
/*
function countBox(boxId)
{
    var data = 0;
    _db.readTransaction(
                function(tx){
                    var rs = tx.executeSql("SELECT count(*) FROM todo WHERE box = ?",[boxId]);
                    if(rs.rows.length === 1) {
                        data = rs.rows.item(0)["count(*)"]
                    }

                }
                )
    return data;
}

function createBatchTodos(data)
{
    _db.transaction(
                function(tx){
                    for(var i=0; i<data.length; i++) {
                        var item = data[i]
                        tx.executeSql("INSERT INTO todo (box, done, title, note, modified) VALUES(?,?,?,?,?)",[item.box, item.done, item.title, item.note, item.modified]);
                    }
                }
                )
}

function clearArchive(model)
{
    model.clear()
    _db.transaction(
                function(tx){
                    tx.executeSql("DELETE FROM karma WHERE box = 4");
                }
                )
}
function updateArchive(box)
{
    _db.transaction(
                function(tx){
                    tx.executeSql("UPDATE todo SET box = 4 WHERE done = 'true' AND box=?",box);
                }
                )
}

*/
function defaultItem()
{
    return {points: 0, title: "", modified: new Date()}
}

function defaultUserItem()
{
    return {id: 1, name: "", image: ""}
}